Brand: MITSUBISHI ELECTRIC
Category: Air Conditioner
Document Type: Manual
Language: EN
Manual for PUZ-A12NKA7
Uploaded: Nov. 21, 2025, 6:17 p.m.
Manual Publish Date: 2017-02-01
- Safety Precautions: Always observe safety rules before and during repair. Disconnect power supply and discharge condenser. Handle electrical parts with dry hands and avoid contact with refrigerant and hot/cold areas.
- Refrigerant Cautions: Use only R410A refrigerant and pipes designed for it. Ensure piping is clean and sealed. Use appropriate tools and vacuum pump. Ventilate the room if refrigerant leaks.
- Service Tools: Specific tools are required for R410A, including a gauge manifold, charge hose, and flare tool.
- Low Ambient Cooling: Precautions for operation in low ambient temperatures include installing an air guide and ensuring adequate standby time for electrical components.
- Features: The system includes a chargeless system with pre-charged refrigerant for piping length at shipment.
Troubleshooting and error codes
| Troubleshooting | Possible Cause | Remedy |
|---|---|---|
| 10. TROUBLESHOOTING | (Listed on page 24 of manual) | - |